KTSO is a Classic Hits station licensed to Glenpool, Oklahoma, serving the Tulsa, Oklahoma area at 94.1 FM. The station is owned by Times-Shamrock Communications. KTSO brands itself as "The SOund". The call letters also signify a previous format, Tulsa's Soft Oldies. Prior to that format, the station was licensed to Okmulgee, Oklahoma, and aired a range of formats, including classical music.